These famous fathers are easy on the eyes, no doubt about it. But it's the way they love their kids that really melts our hearts.

Dad most likely to make his girls giggle: Matt Damon

Dad most likely to make his girls giggle: Matt Damon

Age: 37

Kids: Alexia, 9 (stepdaughter), and Isabella, 2

Why we love him: This down-to-earth dad has compared fatherhood to joining a club he never knew existed. "I didn't realize how much personality little people have right off the bat," he's said. "It's just been fun."

Ready, aim... At a 2006 press conference for The Good Shepherd, Matt shared why making his daughter Isabella laugh is his favorite activity: "You do this thing where you can either give her a raspberry on the stomach or you sort of act like you're going to munch her underarm, and she laughs like a little machine gun. I could do it forever."

Coolest stepdad: Ashton Kutcher

Coolest stepdad: Ashton Kutcher

Age: 30

Stepkids: Rumer, 19, Scout, 16, and Tallulah, 14

Why we love him: In the blink of an eye, Ashton transformed from an adorably goofy bachelor to a devoted pal and stepdad to Demi Moore's three daughters — schlepping them to soccer practice, letting them hang out on the set of That '70s Show, and even attending their parent-teacher conferences. "There is not a human being that I could love more than those girls and their mom," he's said.

All punks are off: In a 2003 interview, Ashton explained how becoming part of Demi's family was like trading pennies for dollars: "Being a part of molding anyone's life is an incredible thing. It's an unbelievable addition to my life. I feel like they've been shafted in the deal. I get four of them, and all they get is me."